Misc: io.Framerate moving average now converge in 60 frames instead of 120. (#5236, #4138)

docs/CHANGELOG.txt

@@ -41,6 +41,7 @@ Other Changes:
 
 - InputText: added experimental io.ConfigInputTextEnterKeepActive feature to make pressing
   Enter keep the input active and select all text.
+- Misc: io.Framerate moving average now converge in 60 frames instead of 120. (#5236, #4138)
 - Backends: Metal: Use __bridge for ARC based systems. (#5403) [@stack]
 - Backends: OSX: Fixes to support full app creation in C++. (#5403) [@stack]
 

imgui.h

@@ -1999,7 +1999,7 @@ struct ImGuiIO
     bool        WantSaveIniSettings;                // When manual .ini load/save is active (io.IniFilename == NULL), this will be set to notify your application that you can call SaveIniSettingsToMemory() and save yourself. Important: clear io.WantSaveIniSettings yourself after saving!
     bool        NavActive;                          // Keyboard/Gamepad navigation is currently allowed (will handle ImGuiKey_NavXXX events) = a window is focused and it doesn't use the ImGuiWindowFlags_NoNavInputs flag.
     bool        NavVisible;                         // Keyboard/Gamepad navigation is visible and allowed (will handle ImGuiKey_NavXXX events).
-    float       Framerate;                          // Rough estimate of application framerate, in frame per second. Solely for convenience. Rolling average estimation based on io.DeltaTime over 120 frames.
+    float       Framerate;                          // Estimate of application framerate (rolling average over 60 frames, based on io.DeltaTime), in frame per second. Solely for convenience. Slow applications may not want to use a moving average or may want to reset underlying buffers occasionally.
     int         MetricsRenderVertices;              // Vertices output during last call to Render()
     int         MetricsRenderIndices;               // Indices output during last call to Render() = number of triangles * 3
     int         MetricsRenderWindows;               // Number of visible windows

imgui_internal.h

@@ -1828,7 +1828,7 @@ struct ImGuiContext
     ImGuiStackTool          DebugStackTool;
 
     // Misc
-    float                   FramerateSecPerFrame[120];          // Calculate estimate of framerate for user over the last 2 seconds.
+    float                   FramerateSecPerFrame[60];           // Calculate estimate of framerate for user over the last 60 frames..
     int                     FramerateSecPerFrameIdx;
     int                     FramerateSecPerFrameCount;
     float                   FramerateSecPerFrameAccum;